Lubricating apparatus



P aanfed a. 1,; 1929 UNITED STATES PATENT OFFICE HowARD J, MURPHY, or READING, MASSACHUSETTS, AssIGNoR, BY M'EsNE ASSIGN- MENTS, To ALEMITEcoRroRATIoN, or cHIcAGo, ILLINOIS, A CORPORATION or DELAWARE LUBRICATING APIALRATUS g Application filed November 18, 1924. Serial No.Y 750,605.

This invention aims' .to provide `an iniproved detachable nozzle for a lubricant-expelling device.

In the drawings,-which illustrate a prev expelling devices wherein the lubricant can-` n ot be discharged unless the device is connected to a lubricant-receiving nipple. f

, In automobiles, particularly, all the parts thereof that may be lubricated are not equipped with nipples, such for instance, as

' the differential gearing and the transmission l. gearing.4 These gears are. covered by hous-.

ings, which are generally provided with `a small openin for reception of lubricant.

y Ordinaril t e lubricant-expelling device,

used in lu ricating most parts of the car, cannot be used to expel lubricant into these housings and thereforel my invention will be found useful in connection with the lubricant-ex- A3o pelling device of the type mentioned to permit lubricating of all parts of the car including those not equippedwith lubricant-receiving nipples to which the device maybe attached. The nozzle may be quickly and easily `attached to and detached from the discharge end ofthe gun and is so constructed that 1t is strong and durable and can be used l in connection with supplying lubricant through relatively small openings.

My invention, as illustrated, comprises a nozzle having at one end thereof a relatively long nose-like portion 1 and at the other end a tapered chamber 2, which lits over the coupling member of a lubricant-.expelling device,

as illustrated. The chamber is surrounded by a relatively thin'wall 3 which is provided with slots 4 ex- ,tending throughout the entire length of the chamber to permit slight expansion and con- .otraction of the wall.

The nose-like portion 1 is provided with a central passage 5 which communicates at its inner end with a lubricant-receiving nipple 6 threadedly secured /to the nozzle and surrounded by the wall 3.

coupling member of the device to which the nozzle is to be attached, I have preferred to illustrate a nipple substantially as shown and described in my copending. application,

Serial No. 616,302 now Patent No. 1,637 ,326..

The lubricating device, as illustrated, is also substantially as shown and described in the above-mentioned application, and the detachj While the nipple 6 may be of any suitable construction for proper engagement with the ablenozzle may be secured thereto by entering the discharge end of the device into the chamber 2 and rotating the ,barrel 7 of the device in a clockwise direction. Thus the lubricant-receiving nipple 6` is entered into the open end of the device and the male threads 8 located on the nipple engage the female threads 9 in the discharge end of the device, thereb gether until t e end of the nipple engages and opens the closure valve 10. At the same time the relatively thin wall 3 contacts with and is slightly expanded4 by the cone-shaped end 11 of the discharge end of the lubricantexpelling device, thus holding thel nozzle drawing' the two parts tov firmly connected to the lubricant-expelling device so that the substantially strong spring 12 behind the valve 10 cannot forcer the v alve 10 into closed position as it would, because of the pitch of the threads, if the wall-3 were not provided.

vWhen the nozzle is thus secured to the discharge end of the device, lubricant may be freely forced from the barrel 7 past the valve 10 through tlie'passage 'in the nipple 6 and through the passage 5 in the nose-like portion 1 into the part to be lubricated.

The seal betweenthe lubricant-expelling device and the nozzle is effected in. exactlyn the same manner as when theZdevice is connected with a lubricant-receiving.nipple/located upon some part of the car.l

The nozzle is also provided witha male thread 13, las illustrated, which may lbe l threaded into a supply tank or the like, so

that, when the lubricant-expelling gun is coupled with the nozzle, the gun lmay be filled from the front end thereof because the valve 10 in the gun is held open and lubricant may pass by it in any direction, as shown in Fig. 2. When the nozzle is used in the above mentioned manner, however, the ball check in the nipple 6 is substituted for a valve (not shown) which may be opened by involving omission, alterations, substitution and reversal of parts, and even changes 1n` the mode of operation, may be made Without departing from the vscope of Vmy invention, which is best defined in the following claims.

Claims:

l. Lubricant-expelling apparatus including a barrel, means for expelling lubricant therefrom, a discharge end beyond said barrel having a discharge passage therethrough normally'closed by a spring-pressed valve, a detachable nozzle having means for opening said valve and resilient means for engagement over the discharge end of said lubricant-expelling apparatus for maintaining said nozzle in a fixed relation therewith.

2. A removable nozzle forthe end of a lubricant-expelling device,`including a chamber at one end thereof for reception of the discharge end of a lubricant-expelling .device and a lubricant-receiving nipple carried by said nozzle and projecting in to said vcham,- ber and presenting means for coupling said nozzle to said lubricant-expelling device and to conduct lubricant from said device to said nozzle.

3. A removable nozzle forthe end of' a lubricant-expelling gun, including means pre* senting external projections for threadedly securing said nozzle to. the gun, said means adapted When secured to the gun to maintain the closure valvein the gun in open position, thereby to permit free passage of lubricant through the nozzle of the gun'and the removable nozzle and means presented by said removable nozzle for surrounding the end of the nozzle of the gun.

4. A removable nozzle for the end of a lubricant-expelling gun, including means for threadedly securing said nozzle to a gun, and means for maintaining the closure valve in said gun in open position, thereby to permit free expulsion of lubricant to parts having no nipple for engagement With a gun, and yieldable means for frictionally holding said nozzle in a fixed relation to said gun.

5. A removable nozzle foi` a lubricant-expelling device -including a recess in one end thereof, a lubricant-receiving nipple carried by the nozzle and extending into said recess and having a male thread thereon for reception of the female threads of a lubricant-expelling gun, said lubricant-receiving nipple providing means for connecting the lubricant in said gun'ivith the passage in said nozzle to permit free passage of lubricant from said nozzle to the part to be lubricated.

6. A quick detachable nozzle for attachment to the coupling member of a lubricantexpelling device, said nozzle including a relatively long nose-like portion at one end thereof, a tapered chamber'at the other end thereof surrounded by a resilient Wall for gripping the coupling member of the lubricant-expelling device, a passage through said nose-like portion and a lubricant-receiving nipple secured to said nozzle for opening the valve in the device to permit passage of lubricant from the device through said nipple and said passage to the part to be lubricated.

l7. A detachable nozzle for cooperation with the fixed nozzle of a lubricant-expelling device comprising a sleeve for resilient en-A gagement With the outer surface of the fixed nozzle and a nipple within said sleeve for engagement'within said fixed nozzle.

8. A detachable nozzle for cooperation With the fixed' nozzle of a lubricant-expelling device, said detachable nozzle including a contractible and expansible sleeve for engagement over the outer surface of the fixed nozzle, a nipple Within said sleeve for engagement Within the fixed nozzle, and means for securing a coupling to said detachable nozzle.

9. A detachable nozzle for cooperation With the fixed nozzle of a lubricant-expelling device, said detachable nozzle including a contractible and expansible sleeve for cngagement over the outer surface of the fixed nozzle, a nipple Within sai-d sleeve for engagement Within the fixed nozzle, and a male thread on' said detachable nozzle for en- 'gagement With a cooperating thread on a nipple-engaging coupling.

10. Lubricating apparatus comprising, in

thereby to maintain said nozzle and nipple in coupled engagement and open a valve, and means presented by said support for engagement With the external surface of said nozzle.

11. Lubricatingapparatus comprising, in combination, a nipple secured to a support, a lubricant-expelling gun including a nozzle for engagement With said nipple, a valve in saidnozzle adapted to be opened by "enga ef ment of sai-d nozzle with said nipple, there y to ermit passage o-f lubricant past said valve an resilient gripping means for cooperating with Saidnozzle to maintain Said nozzle and nipple in coupled. engagement thereby to maintainsaid valve in open position.

12. A coupling device vfor lubricating apparatus comprising a lubricant-receivinfg.4 A nipple for cooperative engagement with alu ricant-expelling-rgun to open the normall closed valve 'means in the nozzle end thereoand resilientl gripping'lmeans surrounding said nipple for engagement with the lubrif l 15 cant x'n when the gun is coupled to said nipple, ereby 'to hold said gun in coupled-relation with said nipple to permit passage of lubricant through the nozzle ofthe gun.

p 18. Lubricating apparatus of the class de-V v scribed comprising, in' combination, a lubrif cantcompressor, a discharge end coin'inuni--y cating with 4said compressor, a detachable nozzle, a lubricant 11i ple detachably' carried by said nozzle, quie' y detachable cou ling means carriedby said discharge end an nip;

'ple to effect a mechanically interlockingen- Vgagement therebetween, and a resilient flange on said nozzle for `frictionally engaging said discharge end toL 'prevent accidental disen-l gagement ofthe discharge end andv nipple.

' 1,4.v Lubricating apparatus of the class'described comprising, in combination, a 1ubri' 4 cant compressor, a'detachable nozzle, a lubricant ni ple detachably carried, by said nozzle, Iquick detachable coupling'means carried by said discharge end Aand, nipple toeiect' a, mechallelly interlocking engagement'therebef tweenyad fa. resilient Vsleeve formed 0n. said nozzle for telescopically receivingand fric- 40 ftionallfy,engaging'said discharge'end, thereby to prevent accidental `dis'e1i.'gagement of the discharge end and nipple.` x In testimony whereof, I havev signed my y name to-thi's specification.

HOWARD J. MURPHY.' 

